Acetylene-gas-generating lamp.



lum-648,606. l Patented may l, |900.

F. E. Bunny.

AGETYLENE GASGENERATING LAMP,

(Application med sepa. 11, 1899.)

(No Model.)

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- 1J E 5\- l l 'l l, l! i S) 1| i \J WITNESSES: I INVENTOR Q. @Lm m14'ATTORNEY NTTED STATES FRANK E. BUNDY, OF

PATENT ACETYLEN E-GAS-G EN ERATING LAlVI P.

SPECIFICATION forming part of Letters Patent No. 648,606, dated May 1,1900.

Application filed September 11,1899. Serial No. 730,122. (No model.)

To all whom, t may concern:

Be it known that I, FRANK E. BUNDY, a citizen of the United States,residing at Elmira, in the county of Ohemung and State of New York, haveinvented certain new and useful Improvements in Acetylene-Lamps, ofwhich the following is a specification.

My invention relates more particularly to improvements in the feedmechanism for delivering the water to the carbid in the lampgenerator;and my object is to provide a positive feed under a constant head.

I attain my object by means of the construction and arrangement of partsillustrated in the accompanying drawings, in which- I1igure l representsa side elevation of a lamp embodying my improvements, and Fig.-

2 details of the feed mechanism.

In both views similar letters refer to similar parts.

A represents the generator, which in this instance is attached to asleeve B, adj ustably fastened upon the standard O. The generator iscylindrical in form and is composed of two parts-the generating chamberD, in which the carbid is placed either in the form of a cartridge orloosely in a suitable receptacle, and the water-receptacle E, separatedfrom the generating-chamber by a diaphragm, as shown. The bottom of thegeneratingchamber is provided with a closure especially designed toprevent the escape of gas. This closure consists of a disk plate F,lianged to slide up into the chamber and having an outer edge to overlapthe rim of the chamber. Between this overlapping edge and the rim of thechamber is a packing-gasket I-I, of rubber or other suitable material. Ascrewthreaded collar G when turned up into place draws the plate and thegasket tightly against the rim of the chamber.

A pipeI delivers the water to the carbid in the generating-chamber, thefeed being regulated by the valve J, which is threaded into the cap K ofthe valve-chamber L, a suitable stuffing-box being provided at theoutside of the cap K to make a tight joint around the valve-stem. Thevalve-chamber L is connected with the pipe I by way of the pipe M andelbow N in the manner shown. Below the valve-chamber is a small box orelbow O, the opening from this box into the valvechamber being closed bya check-valve, as shown. Connected with the box O is a siphon-pipe l?,which rises within the waterreceptacle, the short leg of the Siphonextending down to near the bottom of said'receptacle. Thewater-receptacle is provided with the usual vented liller-plug. By thisarrangement after the water -receptacle has been lled with water and aiow of water started through the Siphon-pi pe, valve-chamber, and pipe Mto the delivery-pipe'I the water will continue to be delivered to thegeneratingchamber under a constant head, the siphonpipe being maintainedfull of water until the' water-receptacle is empty by reason of thecheck-valve, which prevents backflow into said pipe from thevalve-chamber should the gas-pressure within the generating-chamberbecome excessive. Escape of gas through the water-receptacle is alsoprevented by this check-valve.

The top of the generating-chamber is counected by the pipe Q to theburner R.

Having thus described my improvements and without conning myself totheir exact mode of construction and application as to the lamp shown byway of illustration, what l claim as my invention, and desire to secureby Letters Patent, is-

l. In an acetylene-lamp, a generator comprising a water-receptacle abovea generating-chamber, a valve-chamber, a Siphon-pipe to deliver waterfrom the water-receptacle to said valve-chamber at a constant head, apipe leading from the valve-chamber to the generating-chamber, and avalve to regulate the opening into said pipe.

2. In an acetylene-lamp, a generator comprising a water-receptacle abovea generating-chamber, a valve-chamber Within said receptacle, aSiphon-pipe to deliver water from saidV receptacle to said valve-chamberat a constant head, a check-valve to prevent backow through saidSiphon-pipe, a pipe leading from the valve-chamber to thegeneratingchamber, and a valve to regulate the opening into said pipe.

In testimony whereof I have afxed my signature in presence of twowitnesses.

FRANK E. BUNDY.

Witnesses:

C. TRAcEY STAGG, A. S. DIVEN.

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